Trigger Transformer

About Trigger Transformers

Key Features

Engineered for precision high-voltage pulse generation, these trigger transformers deliver up to 20kV output with step-up ratios ranging from 1:50 to 1:70. Featuring epoxy-encapsulated windings and UL-compliant construction, they achieve ultra-low DCR (as low as 41.2mΩ primary) and stable performance across -65°C to +150°C. Compact designs with DIP/SMT mounting ensure seamless integration into space-constrained boards. Optimized for fast rise times and minimal waveform distortion in photoflash systems.

Technical Specifications

• Turns Ratio: 1:50 to 1:70 (model-dependent)

• Primary Inductance: 1.2µH to 19µH @1kHz, 0.1V–1V

• Secondary Inductance: 2.7mH to 49mH @1kHz, 0.1V–1V

• DCR Primary: 41.2mΩ to 420mΩ

• DCR Secondary: 67Ω to 185Ω

• Output Voltage: 4.4kV to 20kV @230V–400V input

• Hi-Pot Isolation: Up to 20kV

• Operating Temp: -65°C to +150°C

• Capacitance: ≤30pF (inter-winding)

Applications

• Camera Flashes: High-voltage triggering in DSLR/compact cameras

• Medical Imaging: Strobe lighting for diagnostic equipment

• Security Systems: Motion-activated photoflash with Sensor integration

• Industrial Testing: High-speed photography for quality control

• Aerospace: Ignition systems in propulsion testing

FAQ
Q: How does it differ from Power Inductors?
A: Designed for pulsed energy transfer (not continuous storage), with higher voltage isolation and faster response than Power Inductor.

Q: Compatible with high-frequency drivers?
A: Optimized for 1kHz–100kHz operation in Power Converter circuits.

Q: Custom ratios available?
A: Standard 1:50–1:70 ratios; contact for specialized Transformer.

Cross-Industry Integration

• Sensor-triggered safety systems with 20kV isolation

• Power Converter modules for capacitor charging circuits

• Transformers in laser pulse generators for scientific research

 Series in this family